Re: [PATCH v12 18/31] mm: protect against PTE changes done by dup_mmap()

2019-04-24 Thread Laurent Dufour
Le 22/04/2019 à 22:32, Jerome Glisse a écrit : On Tue, Apr 16, 2019 at 03:45:09PM +0200, Laurent Dufour wrote: Vinayak Menon and Ganesh Mahendran reported that the following scenario may lead to thread being blocked due to data corruption: CPU 1 CPU 2

Re: [PATCH v12 18/31] mm: protect against PTE changes done by dup_mmap()

2019-04-22 Thread Jerome Glisse
On Tue, Apr 16, 2019 at 03:45:09PM +0200, Laurent Dufour wrote: > Vinayak Menon and Ganesh Mahendran reported that the following scenario may > lead to thread being blocked due to data corruption: > > CPU 1 CPU 2CPU 3 > Process 1, Process